deleteForUser method

@override Future<void> deleteForUser(String userId)

Deletes all reset records whose stored user ID equals userId.

The lookup argument is trimmed; a blank value performs no deletion.

Implementation

@override
Future<void> deleteForUser(String userId) async {
  final normalizedUserId = userId.trim();
  if (normalizedUserId.isEmpty) return;
  _tokens.removeWhere((_, token) => token.userId == normalizedUserId);
}